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Whats that?

Jordan73
Jordan73started grow question a year ago
Whats that?
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Leaves. Other
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LeGrand
LeGrandanswered grow question a year ago
Ph issue.
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MistaOC
MistaOCanswered grow question a year ago
Das sieht nach beginnenden Kalzium Mangel aus.
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Organoman
Organomananswered grow question a year ago
Dveloping calcium deficiency.
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LSchnabel
LSchnabelanswered grow question a year ago
More often than not this is the start of a calcium deficiency. Make sure you are using a CalMag product during your grow. If you use RO water then likely you will need to use more because RO is nearly free of all calcium. Give the plant a good dose of CalMag for the next two waterings and it should reside and you will not see further rust looking spots develop. Hope this helps.
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Sit_Ubu_Sit_Good_Dog
Sit_Ubu_Sit_Good_Doganswered grow question a year ago
a ca deficiency or possibly too much K or P. Depends. this stuff is not discrete. more than one thing typically causes the symptoms you see. referencing how you've fed can help eliminate possibilities. even too little p can cause some copper-colered/dark dead spots... this is much easier to diagnose if in soilless/hydro context because you control all that the plant receives. Soil is a bit tougher to be certain due to unknown levels of nutes that came in the soil... as well as fertilizers that may or may not be plant-ready when added.. many need microbes to break them down before the plant can even use it, which isn't the case with soilless/hydro nutes.
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